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TÜV NORD - Wind Turbine Certification and Site Assessment

TÜV NORD Group, with a workforce of more than 8,000, is one of Germany's largest technical service providers. We owe our leading market position to our technical competence and a wide range of consulting, testing and servicing activities in the Systems, Mobility, Certification, Energy and Systems Engineering, Academy and International Divisions.

Within the field of wind energy TÜV NORD is one of the leading accredited certification bodies for wind turbines worldwide. We certify wind turbines according to all international certification guidelines like IEC, EN, GL, Danish approval scheme, DIBt and TAPS. Within the certification process the design of the whole wind turbine is assessed including the load assumptions, the safety concept and all components. The manufacturing evaluation including the quality management system (ISO) is necessary for a type certification as well as different measurements within the type testing. The certification can also be done for separate components like gear boxes, rotor blades and generators. The necessary gear box prototype test can be supported by our gear box test stand at DMT.

Type certification for wind turbines

Besides the type certification for turbine manufacturers all services for wind farm projects can be offered from one hand. Wind farm planners, operators or financers get the whole spectrum of project related assessment services, like:

  • Due diligences
  • Project certifications
  • Comparison of site conditions with certification of turbines (e.g. acc. to IEC WT01)
  • Assessments of resources / wind potential maps / energy yield prognosis
  • Soil assessments, foundation consultancy and building surveillance
  • Sound immission prognoses and shadow flicker analyses
  • Turbulence reports
  • Environmental impact studies
  • Risk analyses
  • 3-D flow calculations
  • Compliance with local grid codes/LVFRT measurements
  • Assessment of grid connection concepts
  • Manufacturing inspections of components or whole turbines

Site assessment for wind farms

The combination of the type certification and site assessments are also a special service from TÜV NORD. Site specific conditions have a big influence on the economic efficiency and safety of wind turbines. Every special site with either cold climate, hot climate, earthquake zones or special flow conditions like on cliffs etc. can be displayed and assessed with the possible result of a project certificate.

The operation of the turbines can be accompanied by TÜV NORD with commissioning inspections, periodical inspections and special inspections, such as condition-based monitoring, non-destructive testing and damage analyses to ensure performance, availability and safety.